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专利名称：PROCESS FOR MANUFACTURING
COMPOSITE FILAMENTS
发明人：KEIZO UEDA,SATOSHI ANDO,MASAO
MATSUI
申请号：US3541198D申请日：19690319公开号：US3541198A公开日：19701117
摘要：1,083,008. Making composite filaments. KANEGAFUCHI BOSEKI KABUSHIKIKAISHA. Dec. 7, 19 [Dec. 7, 1963], No. 49671/. Heading B5B. Composite filaments aremade by the conjugate spinning of two kinds of linear synthetic polymer in such a waythat the resulting composite filament has a cross-section in which one of the twocomponents surrounds the other in a manner free from eccentricity, and by thereaftermechanically deforming the composite filament in such a manner that the twocomponents thereof assume an eccentric relationship to each other. The mechanicaldeformation may be effected by edge crimping the filament by causing it to travel overand in contact with a heated sharp knife edge or an edge having a minute radius ofcurvature, or by compressing the filament by causing it to travel through the nip of a pairof heated rolls, a pair of heated mutually engaging gear-wheels or through the nip of apair of heated rolls, one of which has a plain peripheral surface and the other has anindented peripheral surface. The polymers may be two kinds of nylon 6 differing inintrinsic viscosity as determined by measurements carried out at 30‹ C. in solutions of thepolymer in meta-cresol. The conjugate filament may be spun in such a manner that the
polymer of lower intrinsic viscosity constitutes the outer component. The conjugatefilament thus formed may be edge crimped over a knife edge heated to 120‹ C. One ofthe polymers may be a nylon 6 and the other may be a polymer formed by reactingundecamethylene diamine terephthalate with 8-caprolactam or may be a polymerformed by reacting the adipate of metaxyliden with its acetate. The composite filamentmay be produced by the conjugate spinning of two different polyesters.
申请人：KEIZO UEDA,SATOSHI ANDO,MASAO MATSUI
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